derek.holloway
7502bf64a4
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21 lines
837 B
C
21 lines
837 B
C
// RUN: %clang_cc1 -verify -std=c2y -Wall -pedantic %s
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// expected-no-diagnostics
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/* WG14 N3262: Yes
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* Usability of a byte-wise copy of va_list
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*
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* NB: Clang explicitly documents this as being undefined behavior. A
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* diagnostic is produced for some targets but not for others for assignment or
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* initialization, but no diagnostic is possible to produce for use with memcpy
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* in the general case, nor with a manual bytewise copy via a for loop.
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*
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* Therefore, nothing is tested in this file; it serves as a reminder that we
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* validated our documentation against the paper. See
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* clang/docs/LanguageExtensions.rst for more details.
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*
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* FIXME: it would be nice to add ubsan support for recognizing when an invalid
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* copy is made and diagnosing on copy (or on use of the copied va_list).
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*/
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int main() {}
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